NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 585
EXIANT COMMUNICATIONS LLC 3
TC SYSTEMS, INC. - NY 1
NEW CINGULAR WIRELESS PCS, LLC - DC 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-01-04 585-990-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C NUNDA NY
2020-12-29 585-515-1XXX 1000–1999Assigned TELNYX LLC 073H HILTON NY
2020-12-24 585-207-4XXX 4000–4999Assigned TELNYX LLC 073H FILLMORE NY
2020-12-24 585-910-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2020-12-22 585-522-0XXX 0000–0999Assigned TELNYX LLC 073H BELMONT NY
2020-12-22 585-534-1XXX 1000–1999Assigned TELNYX LLC 073H ATLANTA NY
2020-12-22 585-855-0XXX 0000–0999Assigned TELNYX LLC 073H BOLIVAR NY
2020-12-14 585-522-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E BELMONT NY
2020-12-10 585-580-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E ANGELICA NY
2020-12-09 585-601-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HENRIETTA NY
2020-12-09 585-601-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HENRIETTA NY
2020-12-02 585-531-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J NAPLES NY
2020-12-02 585-632-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J BERGEN NY
2020-11-20 585-946-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E AKRON NY
2020-11-17 585-844-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C FAIRPORT NY
2020-11-17 585-844-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C FAIRPORT NY
2020-11-13 585-493-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J CASTILE NY
2020-11-13 585-554-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J RUSHVILLE NY
2020-10-28 585-877-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ROCHESTER NY
2020-10-27 585-375-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 OLEAN NY
2020-10-23 585-361-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C SHORTSVL NY
2020-10-20 585-667-6XXX 6000–6999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E WEBSTER NY
2020-10-09 585-833-3XXX 3000–3999Assigned FRACTEL, LLC 965H EROCHESTER NY
2020-10-09 585-844-4XXX 4000–4999Assigned FRACTEL, LLC 965H FAIRPORT NY
2020-10-05 585-505-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2020-09-30 585-601-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E HENRIETTA NY
2020-09-15 585-553-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BATAVIA NY
2020-09-15 585-553-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BATAVIA NY
2020-09-03 585-540-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2020-09-03 585-540-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2020-09-03 585-540-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2020-09-03 585-540-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2020-09-03 585-540-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C ROCHESTER NY
2020-09-03 585-676-9XXX 9000–9999Assigned TELNYX LLC 073H FRANKLINVL NY
2020-08-25 585-515-6XXX 6000–6999Assigned TC SYSTEMS, INC. - NY 7140 HILTON NY
2020-08-18 585-333-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2020-08-18 585-514-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2020-08-18 585-514-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2020-08-18 585-514-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2020-08-11 585-514-7XXX 7000–7999Assigned METROPCS, INC. 5562 ROCHESTER NY
2020-08-06 585-601-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HENRIETTA NY
2020-08-06 585-601-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HENRIETTA NY
2020-07-30 585-480-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MIDDLEPORT NY
2020-07-29 585-540-8XXX 8000–8999Assigned HD CARRIER LLC 321J ROCHESTER NY
2020-07-29 585-540-9XXX 9000–9999Assigned HD CARRIER LLC 321J ROCHESTER NY
2020-07-17 585-390-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BYRON NY
2020-07-17 585-390-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BYRON NY
2020-07-17 585-390-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BYRON NY
2020-07-15 585-536-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BATAVIA NY
2020-07-10 585-514-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C ROCHESTER NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.